Replace N characters from a string in JavaScript [duplicate]

Question

I want to replace all + occurrences on this string:

agheuhfu3r3wogfjnsdnvv++3fefda+3zcvfsdf342rsdff3+fwef

with this character: *

What I wrote is that and it replaces only the first occurrence

var str = "agheuhfu3r3wogfjnsdnvv++3fefda+3zcvfsdf342rsdff3+fwef"; 
var res = str.replace('+', '*');

What's wrong with this code?

You can do this 2 ways: 1. str.replace(/\+/g, ''); 2. str.split('+').join(''); — Naveen Kumar
– Naveen Kumar, Commented Mar 8, 2017 at 14:17

Hikmat Sijapati · Accepted Answer · 2017-03-08 14:08:11Z

1

Try using Regular expression:str.replace(/\+/g, '*') which replaces all the + symbols with * where g is global modifier.

var str = "agheuhfu3r3wogfjnsdnvv++3fefda+3zcvfsdf342rsdff3+fwef"; 
var res = str.replace(/\+/g, '*');
console.log(res);

Take a tour in regular expression from here MDN JS's Regular Expression

answered Mar 8, 2017 at 14:08

Hikmat Sijapati

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Comments

neuhaus · Accepted Answer · 2017-03-08 14:08:38Z

1

replace() takes a regular expression pattern.

If you are replacing a value (and not a regular expression), only the first instance of the value will be replaced. To replace all occurrences of a specified value, use the global (g) modifier

var res = str.replace(/\+/g, '*');

answered Mar 8, 2017 at 14:08

neuhaus

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